Type-writing machine.



0. W. HOWELL. TYPE WRITING MACHINE. APPLICATION FILED DEG.10,1906.

Patented June 1, 1909.

2 SHEETSSHELBT 1.

VII/l/I/I/I/III/I/IIIY/Ill/A G. W. HOWELL.

TYPE WRITING MACHINE. APPLICATION IILEDHDEO. 10, 1906.

' Patented June 1, 1909.

2 SHEETS-SHEET 2.

INVE/VTUR WIT/H8858: ad I I in which keys are depressed to effect type etions between said rock arms and fixed abutventing the types fromreaching the platen.

ANT BEIGE.

rliiARLES. W; HOWELL, Oi NEWARK, NEW JERSEY, ASSIGNOR- TO SUN TYPEWRITERCOM- PANY, A CORPORATION OF NEW JERSEY.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented June 1, 1909.

Application filed December 10, 1906. Serial No. $7,202.

To all whom it may concern:

Be it known that 1, CHARLES W. HOWELL, a citizen of the United States,residing in Newark, in the county of Essex and Stateof New Jersey, haveinvented certain new and useful Improvements in Type-Writing Ma chines,of which the following is a specification.

This invention relates to writing machines impressions upon the paper,an d in which t carriage is fed a letter space at each key de--pression; and particulz-irly to thosemachi-nes in which means areprovided for preventing the types from printing when the end of a lineof writing is at hand.

One of the objects of the invention is to provide simple, inexpensiveand reliable means controlled by the letter feeding carriage forpreventing thetypes from printing, at the end of the line, and toprovide a simple device for releasing the types to enable a word to becompleted, and also to provide a sim le reliable margin gage mechanisminclu ing. right hand and left hand carriagestops both releasable by thesame device that releases the types. 1. illustrate these improvementsembodied in a Sun typewriting machine in which a universal bar operlated by all the type bars is pivoted upon a i pair of rock arms; and Iprovide interponents i which are movable by the carriageto posimentsprovidedupon the framework, thereby preventing vibration of the armsand. pre- The' carriage is provided with a tap et adjustable to lock thetypes at a variab e point in the line of the writing; and said tappetsare releasable by means of a key which is also adapted to release thecarriage from the control of adjustable stops, which regulate the rightand-left hand in argins upon the aper. Other features of my improvementsre ate to paper-feeding devices comprising front and rear rolls pressingagainst the under side of the platen and releasable by sim 1e andeffective means, and also including re easable' front paper-guidingfingers of novel construction and operation.

My in'iproveinents further include a novel line-space regulator and alsoa platen releasing mechanism having novel features.

in the accompanying drawings, Figure l is i a sectional elevation takenfrom front to rear tebth or notches 16.

of a Sun typewriting machine showing my improvements applied thereto.Fig.2 is a front elevation partly in section of the line lockingmechanism, seen at Fig. 1. Fig. 3 is a plan of a fragment of a releasekey rod showing its loose connection to a crank, seen at Fig. 2. Fig. 4is a plan of an interponent showing its loose-mounting upon an endwisemovable rock shaft, the latter having a pin for efi'ecting movement ofthe in-terponent lengthwise of the shaft. Fig. 5 is a plan of themechanism seen at Fig. 1.

Keys 1 are mounted upon bell-cranks 2 connected by links 3 to type bars4 which swing upwardly and rearwardly to strike against the front sideof a platen 5. The latteris mounted in a frame which comprises a truck 6and end pieces 7, 8 erected I thereon; said truck being held by balls 9upon front and rear tracks 10, 11. In saidmachine, the tracks and platenframe are lifted up and downbodily to enable different types to print.The platen frame or carriage is driven by a spring, not shown, andprovided with a letter spacing mechanism including a universal bar 12operable by all the type bars; saiduniversal bar being seg mental andoverlying a slotted segment 13, in which the type bars are held by meansof a curved pivot rod 14. 7

Upon the rear side or edge of the truck 6 is fastened a bar 15 havingteeth 16 cut in its to face at letter spaceintervals. Adjustab e alongsaid bar is a stop member 17 for regulating the right hand margin on thepaper sheet: This stop member is made of sheet .rnetal and comprises aplate which overlies the teeth 16 and ears 18 bent down alongside of therack bar and turnedinto recesses or grooves 19 formed in the base of thebar, so that the stop member is securely held against turning upon orlifting off from the bar.

Screws 20 and 21 pass down through a lever 22, the latter having a tooth23 projecting down through a hole 24 in the sto member 17 and takinginto one of the'rac At its other end, the lever is provided with afinger-piece 25, whereby the lever may be rocked to lift the tooth 23out of the notches 16, and also whereby the stop member 17 may be sliddown, and the head of the screw 20 is sufh- LOO the stop, a key 33 isprovided near the key side of the stop member .17 and formed 43 upon theprojection 44. Hanging from abutment is carried upon the upper end of.advance until arrested by the engagement journaled in I framework ofthe 'machine.

ciently highabove the lever to permit the necessary play of the latter,asseen at Fig. 2. Extending rearwardly from the sto member 17 is a stop27; and in the path of the latter is an abutment 28 to cooperate withthe stop 27 to arrest the movement of the carriage in letter feedingdirection. Said an arm 29, which is hinged at 30 upon a pair of ears 31secured upon the framework, that is upon the vertical shifting frame 32that carries the carriage tracks 10, -11. The abutment is mounted uponthe hinge 30, so that it may be swung rearwardl y out of the path of thestop 27. To effect the release of board u on the front end of a rod 34extending to t 1e rear of the machine and provided with an elbow 35having a slot 36 to engage a pin 37 upon an arm 38, which is rigidlyconnected to and swings with the abutment arm 29. By pressing back thekey 33, the abutment 28 is swung back far enough to clear the stop 27and release the carriage for further letter feeding movement. A. .spring39 on the rod 34 returns the latter and the abutment to normal ositionsupon the release of the key. '1. e carriage may then of a stop 40 withan abutment 41 fixed upon the framework, said st-op40,being fiXed uponthe carriage and determining the final limit of movement of the carriagein that direction.

An arm 42 is bent down from the front with a forwardly projectingtappet43. In the path of said tappet is an n istanding. arm 44 fixed 11ion a horizontal rock shaft 45 rackets 46 fixed upon the Said shaft ismovable endwise by the action of the tappet said rock shaft are two arms47 carrying interponents 48 whichnormally occu y positions alongsidebfthe rock arms 49 iinged at 50 upon the framework, and also hinged at 51to the universal bar 12; said rock arms 49 vibrating at every ty estroke and forming part of the carriage eeding mechanism. The rock shaft45 has pins 52 projecting through slots 53 in the interponent arms, sothat when the shaft is moved endwi'se by the 'tappet 43, theinterponents 48 are moved to the left at Fig. 2 into positions directlyback of the vibrating arms 49. and between the same and fixed abutments54 provided upon the framework. The interponents rest against theabutments so that the movement of the vibrating arms 49 is blocked, andthe types are prevented from reaching the platen. 4

' If now it is desired to write a few more letters, so as to complete aword, thelrey 33 is pressed back together with the rod 34, and a slottedarm 55 on the latter swings back a crank 56 depending fro m the end ofthe rock shaft 45, whereby the latter is rocked and the projection 44 isswung forward, to escape the tappet 43 whereupon a compression 1':.spring 57 upon the rock shaft forces the latter tothe right, at Fig. 2,to normalposition,

thuswithdrawing the interponents 48 and permitting the arms 49 and theuniversal bar 12 to operate and the types to print. Upon. Jr.

the release of the key 33, the spring 39 moves the rod 34 forwardly,thereby rocking the shaft 45 back to normalposition. The type keys maythen be operated to add a few characters upon the end of the line ofwriting. 5:,

The rear edge of the tappet 43 is beveled, and the corresponding portionof. the projection 44 may also be beveled, as seen at Fig. 5, to enablethe projection to ride 'freelyover the tappet when the carriage is drawnback to begin a new line of'writing; the tappet camming the projectionforwardly against the tension of the spring 39 which subsequentlyrestores the parts to normal positions.

The margin on the right hand edge of the 5-5 paper is regulated by astop member 58 having a stop tit-to engage the opposite side of theabutment 28; the member 58 being substantially similar to the member 17and having a corresponding tooth lever 60, to engage the rack 16-,whereby-the width of the margin may be regulated. If it is desired towrite in the margin, it isonly necessary to press back the key 33and-move the abutment 28 back out of the way of the stop 59, whereuponthe carriage may be moved to the'right, as far as desired.- The stops 27and 59 are rounded at 27 and 59 upon their outer edges, so as to cam theabutment 28 out of the way when necessary. The carriage is-also providedwith a stop 61, to engage thefixed stop 41 to determine the final limitof return movement of the carriage.

The slot in the release rod 35 may be sufficiently high to accommodatethe up and down shifting movements of the frame 32.-

Having thus described my invention, 1

claim: v

1. In a typewrit'ing machine having a set of key-operated types and acarriage and also including a member reciprocating at each type stroke,the combinatiornof a tappet adjustable along the carriage, a rodextending along the carriage and mounted upon the framework of themachine and carrying an arm in the path of said tappet, an abutment, aninterponent upon said rod and movable thereby into position to cooperateWith said abutment to arrest said reciprocating nember to prevent thetypes from printing, nd means for turning said rod independently of the.said interponent to rock said arm, out of path of said tappet.-

2. In a typewriting machine having a set of key-operated types and acarriage a nd arms connected to the universalbar and reriding along thecarriage and mounted '5. jccting arm out ol the pathfof said tappet,

- and said rod to normal positions.

1 rein printing, and means for turning said also including a universalbar and a pair of ciprocating at each type stroke, the combination of atappet adjustable along the carriage, a rod extending along the carriageand nicunted upon the framework of the machine and carrying an armprojecting into the path of said tap et, a pair of abutments,interponents movab le by an endwise movement of said rod into positionsto cooperate" with said abutmcnts to arrest said rcciprot eating arms toprevent the types from printing, means for turning said rod.independently of said interponents to rock said proand means forreturning said interponents In a typewriting machine having a set ofkey-operated types and a carriage and also including a memberreciprocating at each type stroke, the combination of a tap-' "tadjustable along the carriage, a rod eX- upon the framework of themachine and carrying an arm in the path of said tappet, an abutment, aninterponent upon said rod and movable thereby into position to coopcrate with the abutment to arrest said reciprocating member to preventthe types rod independently of said interpone nt to rock said arm out ofthe path of said tappet said arm and tappet having relatively inclinedsurfaces engaging each other upon the return of the carriage, to permitthe arm to ride freely past the tappet.

In a typewrit'ing machine having a. set of key-operated types and acarriage and also including a member reciprocating at each type stroke,the combination of a stop memberl adjustable along the carriage, amovable abutment upon the framework of the machine in the path of saidstop member to cooperate therewith to arrest the carriage, a tappet uponsaid stop member, a rod extending along the carriage and mounted forboth ei'idwise movement and rotative upon the framework of lhe machineand carrying an arm projecting into the path or said tap- 1 pet, anabutment, an interponent caused by the endwise movement ofsaid rod tomove into the path of said reciprocating member l and cooperate withsaid abutment to prevent the types from printing, a finger piece havingmeans to turn said rod to rock said projecting arm out of the path ofsaid tappet, resilient means for returning the interponcnt and the rodto normal positions when 5 released by said finger piece, and means forenabling said finger iece to move said abutment out of the pat of saidmember.

5. 'In a typewriting machine having a set of key-operated types and acarriage and also including a member reciprocating at each type stroke,the combination of a stop a tappet upon said stop member, a rod ex--'tending along the carriage and mounted for both endwise movement androtation upon the framework of the machine and carrying an armprojecting into the path or said tappet, an abutment, an interponcntcaused by the endwise movement of said rod to move into the path of saidreciprocating member and cooperate with said abutment to prevent thetypes from printing, a finger piece hav ing means to turn said rod torock said projecting arm out of the path or said tappet, resilient meansfor returning the interponent and the rod to normal positions whenreleased by said finger piece, means for enabling said fin er piece tomove said abutment out of the path of said member, an additionalabutment mounted upon the framework, and an additional stop upon thecarriage to engage the additional abutment to determine the final limitof movement of the carriage.

6. In a typewriting machine having a letter-feeding carriage and a setof types, the combination of a rack for said carriage, a stop memberadjustable along said rack, an abutment hinged upon the framework in thepath of said stop member,- to cooperate therewith to arrest the carriagewhen returning to begin a new line of writing, a second sto member alsoadjustable along said rack an engageable with the opposite side of saidhinged abutment to arrest the carriage movement in letter-spacingdirection, a spring-pressed releas-rod'loosely connected to said hingedabutment and extendin to the front of the machine, to swing the a utmentout of the path of the stops, additionalv abutments fixed upon theframework, additional stops projecting from the ends of. the carriage toengage said additional abutments to determine the final limits of themove ments of the carriage, a tappet upon the second stop member, anendwisemovable rockshaft carrying an arm projecting into the path ofsaid tappet, a pair of interponents movable by means of an endwisemovement of said rock-shaft into positions between a pair of fixedabutinents on the framework and a pair of arms connected to a; universalbar, to cooperate with said abutments and said arms to prevent the typesfrom printing, an arm upon said rock-shaft and connected to saidrelease-rod to enable the latter to release said projecting arm, a sprinfor returning said shaft endwise to nornia position to withdraw saidinterponents when said projecting arm is released from said ta pet; saidprojecting arm having a beveled e e to ride over said arm to rock saidshaftid y during the return of the carriage, and said interpocombinationof a tappet upon the carriage, a

rock-shaft carrying an. arm in the path of,

said tappet,*a pair of interponents carried,

looselyupon said shaft and movable thereby into positions between a pairof fixed abutments on the framework and a pair of arms carrying auniversal bar, to cooperate with said abutments and said arms to preventthe types from printing, means to release said arm from said tappet, anda spring for returning said shaft endwise to normal position to Withdrawsaid interponents when said arm is released.

8. In a typewriting machine having a letter-feeding carriage and a setof types, the combination of a rack for said carriage, a stop memberadjustable along said rack, an abutment hinged upon the framework in thepath of said stop member, to cooperate therewith to arrest the carriage,a spring-pressed release-rod loosely connected to said hinged abutmentand extending to the front of the machine, a tappet upon the stopmember, an endwise movable rock-shaft carrying an arm projecting intothe path of said tappet, an inl terponent movable by means of an endwisemovement of said rock-shaft into positions between a fixed abutment onthe framework and an arm connected to 'a universal bar, to cooperatewith said abutment and said arm to prevent the types from printing, acrank my hand, this 6th day of December, 1907.

CHARLES W. HOWELL.

Witnesses:

WM. H. OAMFIELI), E. A. PELL.

